Our goal is to point out the tremendous importance of the “es gibt” concept in heideggerian philosophy through the analysis of few texts of the 1921 to 1923 period. It will lead us to the emerging heideggerian conceptualization of phenomenology, where “seeing” means interpreting or understanding. To be able to see is the same as to be able to interpret. Right from the first courses, this terme is associated to the word “phenomenology”. What does it mean? The understanding of life as pre-theoretical sphere with the philosophy’ conceptual and objectivizing tools, included those of the husserlian phenomenology, unsatisfied Heidegger: for him, we need to emancipate ourselves from the deeply anchored obsession of theoretical. Is the phenomenological seeing not a topicalization, thus an objectivation, namely a theoretical activity? We have to regain the possibility of an a-theoretical intuition which shows a phenomenology considered in the specifics terms of the “opening to the experiential real life sphere”, as a behavior, an attitude, a “to relate to something’‘.